Items beginning with the letter: “U”

Proper Disposal
• If possible, consult the chemical’s owner or user to see if that person can identify the chemical or at least describe how the chemical was used or intended to be used.
• Try to associate the unknown waste with a profession or hobby, depending on where it was found.
• Bring to the WLSSD Household Hazardous Waste Facility if generated by a household.
• Businesses can contact the Clean Shop for disposal of unknown wastes – (218) 726-1602.

CAUTION
Do not open containers of unknown chemicals. Some chemicals can become unstable over time and can explode if opened. Even if a container does not hold a potentially explosive chemical, opening it may expose you to the chemical inside.